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Alibaba ACA-Database Exam - Topic 1 Question 92 Discussion

Why is ApsaraDB for PolarDB better than other traditional database engines? (The number of answer: 3)
A) When you purchase a PolarDB cluster, you don't need to specify the storage capacity you want to purchase and C) The PolarDB database engine won't require you to replicate data when adding read-only nodes and D) ApsaraDB for PolarDB uses the pay-as-you-go billing method, therefore you only need to pay for the storage resources you actually use
B) PolarDB supports both OLTP and OLAP scenarios very well

Alibaba ACA-Database Exam - Topic 1 Question 92 Discussion

Actual exam question for Alibaba's ACA-Database exam
Question #: 92
Topic #: 1
[All ACA-Database Questions]

Why is ApsaraDB for PolarDB better than other traditional database engines? (The number of answer: 3)

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Suggested Answer: A, C, D

https://www.alibabacloud.com/help/doc-detail/172293.htm?spm=a2c63.p38356.b99.81.101b333ePsD0YF

by Rory at Jan 05, 2026, 05:16 AM

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Ricarda
3 months ago
D is smart. Pay only for what you use, very cost-effective.
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Vanda
3 months ago
Option C is a game changer. No data replication needed!
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Adria
3 months ago
I prefer option B. It’s versatile for both OLTP and OLAP.
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Stephaine
4 months ago
I think option A is great. No need to guess storage upfront!
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Daren
4 months ago
Yeah, the flexibility in storage is a huge plus for developers!
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Elvera
4 months ago
I’m not sure about that OLTP/OLAP support claim, sounds too good to be true.
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Denny
4 months ago
Wait, you don't have to replicate data for read-only nodes? That's impressive!
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Darrin
4 months ago
Totally agree, the pay-as-you-go model is a game changer!
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Corrina
4 months ago
ApsaraDB for PolarDB lets you scale without worrying about storage limits!
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Lizbeth
5 months ago
I heard PolarDB can also do your taxes. What can't this thing do?
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Telma
5 months ago
Option D is also a great feature. I hate paying for storage I don't use.
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Quentin
5 months ago
I'm surprised there's no option for "All of the above." That's usually the correct answer!
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Wilson
6 months ago
I agree with Mabelle. Option B is the best choice here.
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Mabelle
6 months ago
Option B is the correct answer. PolarDB supports both OLTP and OLAP scenarios very well.
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Malcolm
6 months ago
I think the pay-as-you-go model is a key feature too, but I’m not entirely sure how it compares to traditional billing methods.
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Antonio
6 months ago
I definitely recall that PolarDB allows adding read-only nodes without data replication, which is a big plus for scaling.
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Kassandra
6 months ago
I'm a bit unsure, but I remember something about PolarDB being good for both OLTP and OLAP. Is that one of the reasons?
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Refugia
6 months ago
I think one of the advantages is that you don't have to specify storage capacity upfront, which seems really flexible.
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Mari
7 months ago
Whew, this is a lot of information to unpack. I'm a little overwhelmed trying to compare the features of PolarDB to traditional databases. I'll have to read through the question carefully and try to identify the most important differences to focus on in my answer.
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Kenneth
7 months ago
This question seems pretty straightforward. I'm pretty confident I can explain why ApsaraDB for PolarDB is better than traditional databases based on the information provided. I just need to make sure I hit all the key points clearly and concisely.
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Nan
7 months ago
Okay, let's see. The key things I need to focus on are the flexibility of storage capacity, the support for both OLTP and OLAP, and the pay-as-you-go billing model. I think I can put together a solid answer by highlighting those points.
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Rasheeda
7 months ago
I'm a little unsure about this question. I know PolarDB is a cloud database service, but I'm not super familiar with the details of how it compares to traditional databases. I'll have to think this through carefully.
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Dexter
7 months ago
Hmm, this seems like a pretty straightforward question about the benefits of ApsaraDB for PolarDB. I think I can handle this one.
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Erinn
1 month ago
Pay-as-you-go is a game changer for costs!
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Dorinda
1 month ago
I love that it supports both OLTP and OLAP!
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Alpha
3 months ago
ApsaraDB is flexible with storage!
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